Crosslinking agent for water-absorbing resin and water-absorbing material obtained with the same
US6723797B2 · kind B2 · utility
2Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2300/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A crosslinking agent for water-absorbing resins which comprises (A) at least one halohydrin compound selected between (A1) a first halohydrin compound having per molecule at least two halohydrin groups (D) represented by the general formula (I), wherein R1 represents hydrogen or alkyl and X represents chlorine or bromine and (A2) a second halohydrin compound having per molecule at least two halohydrin groups (D) represented by the formula (I) and having per molecule at least one ammonium group (M) represented by the general formula (II), wherein R2's each independently represents a C1-4 hydrocarbon group or benzyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.